Description
Introduction
The theben iON 108 KNX (Item no. 4969238) is a modern room controller designed for sophisticated KNX building automation systems. Equipped with an integrated bus coupling unit, it connects directly to the KNX bus line via a standard bus terminal, making it an efficient addition to any KNX panel installation.

Engineered for high data security, the controller fully supports KNX Data Secure protocols. In addition to standard bus control, it offers wireless Bluetooth access, allowing convenient operation and management through the dedicated IONplay app.
Key Features
- Integrated KNX bus coupling unit.
- Support for KNX Data Secure protocol.
- Bluetooth access and control via the IONplay app.
- Operating voltage supplied via KNX bus (≤12.5 mA).
- Standard KNX bus terminal connection type.
- Enclosure rating of IP 20 and Protection Class III.
- Ambient operating temperature range from -5°C to 45°C.
Benefits
- Integrated bus unit simplifies installation by eliminating the need for an external bus coupler.
- KNX Data Secure support protects room control communications against unauthorized access.
- Wireless Bluetooth connectivity enables direct local control using the IONplay application.
- Low current consumption of ≤12.5 mA directly off the KNX bus voltage.
- Clean visual integration with a standard white finish (similar to RAL 9016).
- Comprehensive documentation package available, including ETS ZIP database files and complete PDF manuals.
Technical Specifications
Applications
- Individual room control in residential and commercial KNX installations.
- KNX panel and wall-mounted control configurations requiring secure bus communication and mobile app access.
Installation Notes
- Connect the controller directly to the KNX line using the standard KNX bus terminal.
- Ensure installation environments remain within the operational ambient temperature range of -5°C to 45°C.
- Verify proper bus voltage connection and maintain IP 20 indoor installation standards.
Developer Resources
- Single Product KNX-Database (ZIP)
- All Products KNX-Database (ZIP)
- Product Data Sheet and Operating Instructions (PDF)
- Technical Handbook, Brochure, and Flyer (PDF)
- CE Declaration of Conformity and EU Data Act Notice (PDF)
FAQ
How is the theben iON 108 KNX powered?
The room controller is powered directly by the KNX bus voltage with a current consumption of ≤12.5 mA. Explore more theben KNX solutions for professional building automation projects.
Does the theben iON 108 KNX support secure communication?
Yes, it includes native support for KNX Data Secure to ensure encrypted communication across the system. For certificates and current technical files, refer to the official theben product page.
How can users control the device via Bluetooth?
Users can access and operate the theben iON 108 KNX wirelessly over Bluetooth using the IONplay application.
What connection method is used for installation?
It utilizes a standard KNX bus terminal for connection to the bus line.
What is the exact product model?
The order/model code for this page is 4969238. Match it against project documents before purchase.
Who is the manufacturer?
This product is manufactured by theben.
Conclusion
The theben iON 108 KNX (SKU 4969238) delivers secure, versatile room control with its integrated bus unit, KNX Data Secure support, and Bluetooth IONplay app access. It is an ideal, low-power solution for modern KNX building automation projects. Installers and system integrators can review our professional project support options.















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